dust collector auto start switch

[Bill in seattle]

I am looking for a auto start switch to hook up to a 3 hp 240v  dust collector on a tablesaw. I know I saw one some time ago that went in a j-box and started the vac after the saw started.
anyone seen this item and where recently? It has to be for 220/240v. not the lite duty 110 simple ones that are commoner
Thanks for the help
Bill

 

[Ned]

Hi Bill--

Not quite what you asked for, but would be a good choice on a table saw:

EcoGate

Ned

 

[Bill in seattle]

Not the part I saw, but this sure is interesting. I don't have a gate to open close. I just forget to turn on the collector. this might work on my ct multi blast gate system thou. That would make it even better. I'll look into it.
Thanks for the lead
Bill

 

[Scott W.]

Not the part I saw, but this sure is interesting. I don't have a gate to open close. I just forget to turn on the collector. this might work on my ct multi blast gate system thou. That would make it even better. I'll look into it.
Thanks for the lead
Bill

Those are cool but Pricey. If you don't have a blast gate to automatically open & close all you need is a current switch and a relay, much less expensive here's an example of a current sensing switch: here  They are not hard to find.

If you DO have a manual blast gate to open / close, you can just wire a small limit switch to the blast gate to open/close the relay for the dust collector. You will need a power source for the relay.

It's a relatively easy DIY project.

Scott

 

[Dave Ronyak]

Not the part I saw, but this sure is interesting. I don't have a gate to open close. I just forget to turn on the collector. this might work on my ct multi blast gate system thou. That would make it even better. I'll look into it.
Thanks for the lead
Bill

Bill,

I realize the following is not the solution you are looking for, that appears to be a HD 220V relay mechanism.  I have seen plug-in wall box units that will trigger an outlet to turn on a DC when power is drawn from the other outlet into which the tool is plugged (works like a Festool or Fein vacuum machine).  But I would be surprised if these are available for 220V circuits due to electrical code requirements and limitations in many areas (including my city) which requires each 220V circuit to power only a single load device, e.g. either a table saw or a dust collector of the sizes you have  (I did succeed in getting a variance so that I can have two adjacent receptacles with two different plug types connected to the same circuit since only one of the machines (saw or planer) will be run at the same time.  I have a 220V table saw and a 2.5 HP Oneida DC unit with RF remote control built into its connection/relay box.  I either keep the controller on my person or place it near the saw/router/planer or other tool I am using.  That helps me to keep from forgetting to turn the DC on.   You might check with Oneida or Woodworker's Supply to see if they have an products that might address the issue the way you prefer.

Here is a the link to Woodcraft's URL where they offer a 220V remote control unit for $69 that you can simply plug in. http://www.woodcraft.com/family.aspx?familyid=5117&mode=details#tabs

Dave R.

 

[Bill in seattle]

Dave
the part is the one like the festool vac one but for 220. you might have a point about the single breaker single tool code. I'll have to check that one out. Current load would have a effect but mostly at startup. This switch had a delay to start one a few seconds after the other was up and running so it might be allowable. Have contacted a few manufactures but no response yet.  I originally saw this item in the flotsam of catalogs that come in the mail under dust collection. I tore the area out of the book, carried it in my wallet forever but when I looked for it when the time came, must have filed it elsewhere. Go figure.
I also have a 50amp sub box to the saw area so I can break circuits if needed.
thanks all for the help so far,
Bill

 

[Dave Ronyak]

Someone on FOG must know the answers to your questions.  I wonder if Rick Christopherson is aware of them.  He seems to know a lot about things electrical (and about much else, too).

You might try posting on some other forums as well as here.

Dave R.

 

[Bill in seattle]

never afraid to ask for suggestions, but not familiar with other places to post it.
any suggestions?
Bill

 

[Dave Ronyak]

SawMillCreek.  I don't belong or post there, but have in the past visited and learned a lot from them.  There are other internet forums, too, that you can locate by simply using a search engine such as Google and others.  Given the development of FOG and my limited time to review forums, I rarely look at other forums

Dave R.

 

[Mike_Chrest]

Here's a link to a Fine Woodworking book that shows how to hook up a relay in your subpanel.
http://books.google.com/books?id=2qSB--NoZIIC&pg=PA114&lpg=PA114&dq=dust+collector+relay&source=web&ots=1z7x8dB_JC&sig=3Biq-UUTn7x_uOPJXjYJph0DZgc

 

[Bill in seattle]

Thanks Mike,
that is what I am looking for.Now to figure out where to round up parts. pg 16 for 220v doesn't appear, so I'll have to visit the book store and see if they have it. 
Thanks for the heads up,
Bill

 

[Greg_R]

Bill, I built a remote for my 5HP Clearvue.  The FineWWing link looks very complex to me.... I found the method below much cleaner and easier to use. 

Parts:
- Medium sized junction box (enough to hold the contactor)
- Dual pole contactor (30A or whatever you need for your motor).  Grainger part #2CF94.  A contactor is an electromagnet that will pull a switch into position when 110V current is applied.  The switch then mechanically connects a large amperage circuit.
- 30A breaker
- 30A wiring
- Radio Shack remote light switch or a Christmas tree light remote.  You are looking for an RF controlled switch for a 110V circuit.

Install the 30A breaker in your breaker panel and run the 30A wire to your junction box location (it should be near an existing outlet).  Connect the wire to the dual pole contactor (mounted in the junction box).  Run 30A wire from the other end of the contactor to your motor.  Hook up the control leads of the contactor to a 110V cable which will connect to the remote switch (switch is plugged into an existing 110V socket).  When you hit the remote, the switch will activate & the contactor will switch (thus connecting the 30A leads).  Test the contactor function _before_ flipping the 30A breaker in your breaker box.  It should click in on 1 remote keypress and out on the next keypress.

 

[Greg_R]

I forgot to mention that I prefer the DC remote over the relay implementation because you can turn your DC on or off independently from the other large tools.  The relay requires that all the tools run off of the same circuit... with a remote you can run multiple circuits for your shop / tools.

 

[Bill in seattle]

Hi gregg
I have used the remotes and just lose them, kind of like tape measures, I gave that up years ago.  I even wired the dc switch right next to the saw switch but sometimes when I'm just making just one little cut I get lazy and don't turn it on. I know its my own fault but after several of these quick little cuts, now I got a mess. I like the idea of simplifying every thing I can. Being automatic like the ct's auto start just makes sense to me.
the dc also only goes to the saw. One button convenience is my goal unless I could figure out voice control. saw-on saw-off, Hmmmmmmm, now theres an idea.
Thanks 
Bill

 

[Scott W.]

Bill,

The current sensing device I mentioned in my post earlier will do exactly what you want.

When you power up your saw it will sense the current draw and close a switch which you use to power a relay the relay sends the power to your dust collector and turns it on automatically. When you turn the saw off it will take power off the relay turning off the dust collector.

Scott

 

[Bill in seattle]

The current sensing device I mentioned in my post earlier will do exactly what you want.

When you power up your saw it will sense the current draw and close a switch which you use to power a relay the relay sends the power to your dust collector and turns it on automatically. When you turn the saw off it will take power off the relay turning off the dust collector

Those are cool but Pricey. If you don't have a blast gate to automatically open & close all you need is a current switch and a relay, much less expensive here's an example of a current sensing switch: here  They are not hard to find.

It's a relatively easy DIY project.

Scott

Hi scott
So as I'm cleaning the desk minutes ago and getting receipts for taxes(accountants screaming) lo and behold I find the page I ripped out of the book I knew I had.  surprising enough it was from rockler. I called immediately and placed an order for Pt# 29537 dust collector auto start module 220v $62.99 Yehah!!!  life's good. Then the guy tells me it was phased out and no longer available. DA####M. So close!!!! Go figure.
Then your reply came back and you have answers. The page you listed doesn't come up for me.  If you know  a part # for one of these relay/sensors  that would be helpfull. grainger is nearby would they have it?
Thanks
Bill
I like the EASY part.
[/quote]

 

[Eli]

I betcha Grainger has it. They're the bomb.

 

[Scott W.]

Bill,

The site the link was from is :http://www.cymaticsinc.com/

Look under current sensors.

I pm'd you

Scott